Abenobashi Mahou☆Shoutengai episode 7

It aired on Thursday, 16 May 2002.

Flashback! [Magical Shopping Arcade Birth]

There aren't any wacky themes here. Instead, it's a more somber look at how the magical shopping arcade was born, as told from those that were there some 50 years ago. It doesn't explain what's going on in Arumi and Sasshi's case, however, but it reveals some other important information.